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Product detail:
Suzhou Dongtai magnetics Co., Ltd is a manufacturer specialized in producing bonded Nd-Fe-B magnets. We have been supplying the market with excellent quality products and services in competitive prices for years, and have earned well appraisement.
Our products have been widely used in stepper motors, Micro Motors, Dashboard Instruments, Peripheral Computer Equipment, medical instruments, Sensor Magnets, clocks & watches, household appliance, etc.
It is our commitment to supply high quality products and specialized services for customers. We are looking forward to cooperate with you!
| Product | ring bonded xneodymium permanent magnet |
| Material | Neodymium-Iron-Boron |
| Certification | GB/T19001-2008/ISO9001:2008, GB/T24001-2004/ISO14001:2004 |
| Max working temperature | Max. Working Temperatures: 180°C |
| Size | Customized size per your requirements. Our Minimum product dimension: |
| a. cube magnet 1.75*1.3*0.6mm | |
| b. cylinder magnet φ1.8*φ0.6*0.8mm | |
| c. slice 3*3*0.35mm | |
| Shape | a. Arc magnet |
| b. Ring magnet | |
| c. Block magnet | |
| d. Cylinder magnet | |
| e. Customized design | |
| Coating method | Epoxy, spary, dipper, parylene |
| Magnetized method | a. Thickness Magnetized |
| b. Axially Magnetized | |
| c. Diametrally Magnetized | |
| d. Multi-poles magnetized | |
| e. Radial Magnetized | |
| f. Customized specific requirements magnetized | |
| Package | a. Standard Air Way Package (filled with iron sheets and foams to shield magnetism) |
| b. Standard Sea Way Package | |
| c. Customized Package |
Bonded Neodymium magnets are manufactured through the compression process. This process involves mixing neodymium powder with epoxy as a binder and pressing it into a die cavity with no magnetic field, thus making these magnets Isotropic. Pressed parts are then placed into the oven for curing. Compression bonded neodymium magnets are an excellent choice over other magnet types (sintered neodymium, sintered samarium cobalt, and hard ferrites) that have limits to some shapes that compression bonded magnets do not have. With their high energy product reaching up to 12 MGOe it makes them ideal for many applications requiring high magnetic strength and tight tolerances. Since no magnetic field is applied during the compression the finished product can be magnetized in any direction. Having epoxy as a binder in the manufacturing process for compression bonded magnets makes the magnets resistant to most industrial automotive fluids. With relative low tooling cost and quick turnaround compression bonded neodymium magnets are the choice for a wide variety of applications. The final product can be epoxy coated for durability and more resistant to corrosion.
| Characteristics of NdFeB Bonded Magnets | |||||||||||
| Brand | Remanence | Coercive Force | Intrinsic Coercivity | Maximum Energy Product | Temperature Coefficient(100°C) | Density | |||||
| Br | bHc | iHc | (BH)max | α(Br) %/°C | β(iHc) %/°C | ρ g/cm3 | |||||
| KGs | MT | kOe | KA/m | kOe | KA/m | MGOe | KJ/m3 | ||||
| DTM-4 | 3.5-4.5 | 350-450 | 3.0-4.5 | 240-280 | 8-10 | 640-800 | 3-4 | 24-32 | -0.12 | -0.38 | 5.3-5.5 |
| DTM-6 | 4.8-5.7 | 480-570 | 4.0-4.5 | 320-360 | 8-10 | 640-800 | 5-7 | 40-56 | -0.13 | -0.4 | 5.8-6.0 |
| DTM-8 | 5.5-6.0 | 550-600 | 4.5-5.0 | 360-400 | 8.5-10.5 | 680-840 | 7.5-8.5 | 60-80 | -0.13 | -0.38 | 5.8-6.0 |
| DTM-10 | 6.3-7.0 | 630-700 | 4.8-5.4 | 384-432 | 8-10 | 640-800 | 9-10 | 72-80 | -0.11 | -0.39 | 5.9-6.1 |
| DTM-12 | 6.8-8.0 | 680-800 | 5.5-6.0 | 440-480 | 9-11 | 720-880 | 10-12 | 80-96 | -0.11 | -0.38 | 6-6.2 |
